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  • 1971-78 Honda CB550F / CB550K / CB500K High Performance Kibblewhite Black Diamond Exhaust Valve
Honda CB550F CB550K CB500K high performance kibblewhite black diamond exhaust valve 14721-323-005
Honda CB550F CB550K CB500K high performance kibblewhite black diamond exhaust valve 14721-323-005 — OEM fiche location reference
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Honda CB550F CB550K CB500K high performance kibblewhite black diamond exhaust valve 14721-323-005

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Load image into Gallery viewer, Honda CB550F CB550K CB500K high performance kibblewhite black diamond exhaust valve 14721-323-005
Load image into Gallery viewer, Honda CB550F CB550K CB500K high performance kibblewhite black diamond exhaust valve 14721-323-005 — OEM fiche location reference

1971-78 Honda CB550F / CB550K / CB500K High Performance Kibblewhite Black Diamond Exhaust Valve

12-0081
$79.95 USD

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In stock Usually ships the same or next business day
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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1971-78 Honda CB550F / CB550K / CB500K High Performance Kibblewhite Black Diamond Exhaust Valve
$79.95 USD
Description

Match your CB500/CB550 intake with this Kibblewhite Black Diamond Exhaust Valve, replacing OEM #14721-323-005. Same Black Diamond process as our intake valves: stainless steel with a special German surface treatment (.002 depth, .0002 build-up) for superior wear, friction, and corrosion resistance. FEA-designed, flow-bench tested, one-piece forgings. Made in the USA.

Sold each, order the quantity you need.

Key Features
• Kibblewhite Black Diamond exhaust valve
• Replaces OEM #14721-323-005
• Black Diamond surface treatment
• Lightweight one-piece forging
• FEA-designed, flow-bench tested
• Made in the USA

Fitment / Compatibility
• Honda CB500K (1971‑73)
• CB550K (1974‑78)
• CB550F (1975‑77) Supersport

Part Number: 12-0081

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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB550K0 1974
Honda CB550K1 1975
Honda CB550K2 1976
Honda CB550K3 1977
Honda CB550K4 1978
Honda CB550F1 1975
Honda CB550F2 1976
Honda CB550F3 1977
Honda CB500K0 1971
Honda CB500K1 1972
Honda CB500K2 1973

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

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60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

How many Kibblewhite exhaust valves are included and required for a CB500K or CB550 engine?

One Kibblewhite Black Diamond exhaust valve is included. These four-cylinder, eight-valve engines use four exhaust valves, so four are required to replace the complete exhaust-valve set.

Which Honda OEM exhaust valve does 12-0081 replace?

Kibblewhite exhaust valve 12-0081 replaces Honda OEM 14721-323-005 for the compatible 1971-1973 CB500K, 1974-1978 CB550K and 1975-1977 CB550F Supersport.

Is 12-0081 an intake valve or an exhaust valve?

It is the exhaust valve. Use intake valve 12-0080 for the intake side; the two valve types are not interchangeable.

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